Stone cutting and surfacing machine



R. G. RAND.

STONE CUTTiNG AND SURFACING MACHINE.

APPLICATION FILED JULY 1. 1916.

1 ,305,8 3%. Patent-ed J 11116 3, 1919.

3 SHEETS -SHEET fiicizazzi 6f gwuwwboz R. G. RAND.

STONE GUT'T ING AND SURFACING MACHINE.

APPLICATION FILED JULY 7. Isms.

1 ,3Q5,83%, Patented June 3, 1919.

3 SHEET-SHEET 2.

R. 6. HAND.

STONE CUTTING AND SURFAClNG MACHINE.

APPLICAHON min JULY I, 1916.

Patented June 3, 1919.

' 3 SHEETS-SHEET a H RRIS PLTERS CU. PHDTIFLHHQ. WASH!" tmrran s rarasrad ans @FEEQE.

RICHARD G. RAND, OF WINSTON SALEM, NORTH CAROLINA.

STONE CUTTING AND SURFAGIN G MACHINE.

. Application filed July 7, 1916.

1 b all whom it may concern:

Be it known that I, RICHARD Gr. RAND, a citizen of the United States,and resident of Winston-Salem, in the county of Forsyth and State ofNorth Carolina, have invented certain new and useful Improvements inStone Cutting and Surfacing Machines, of which the following is aspecification. y

The present invention relates to new and useful improvements in boring,drilling, stone-cutting, surfacing and other machines, the primaryobject of my invention being to provide an improved machine of the abovecharacter adapted to be known as a header surfacer, for the purpose ofsurfacing the perpendicular sides of the stone as distinguished from thehorizontal surfaces, the invention also comprehending an improved typeof supporting and carrying frame for a pneumatic drill, hammer, stonesurfacing tool or the like.

Another object of my invention is to provide a support of the classdescribed having means associated therewith permitting vertical,horizontal, and lateral adjustments, means also being provided foraccommodating curved surfaces.

A further object of my invention is to provide a machine of the classdescribed which is simple in construction, strong and durable, andefiective in operation, the parts at the same time being light andquickly and easily adjusted.

A still further object of my invention is to provide a machine of theclass described, which while being capable of a wide range of adjustmentwill maintain its equilibrium when a load is applied more on one sidethan on the opposite side, a balancing weight facilitating andpermitting this function.

Other objects and advantages to be derived from the use of my improvedstone cutting and surfacing machine will appear from the followingdetail description and the claims, taken with an inspection of theaccompanying drawings, in which:

Figure 1 is an end elevational View of a machine embodying theimprovements of my invention;

I Fig. 2 is a top plan of the same, enlarged, the supporting standardbeing in section and the top portion removed;

v Fig.3 is an enlarged fragmental transversesectional view of the toolcarriage and track therefor;

Fig. 41 is an enlarged tragmental perspec- Specification of LettersPatent.

Patented June 3, 1919.

Serial No. 107,962.

tive view of a portion of the standard and one of the units of'thecarrying frame;

Fig. is a similar view of the other unit of the carrying frame, the toolcarriage track being in section and separated from said unit.

Referring more particularly to the drawings, wherein similar charactersof reference designate like and corresponding parts throughout thevarious views, B designates, in its entirety, the base, said base beingcomposed of side channel beams 1 and 2 and end channel beams 3 and 1,said side and end channel beams having their free end portions connectedby triangular plates 5. Longitudinal beams 6 and 7 are provided arrangedin parallel relation and having their free ends connected by means ofbrackets 8 to the end beams 3 and 4. Continuous brace members 9 extendbetween the side beams l and 2 and the intermediate beams 6 and 7. Abase plate 10, preferably rectangular in configuration is carried by theintermediate beams 6 and 7, said plate being riveted as at 11 orotherwise secured to said beam. A bearing plate 12 is mounted centrallyof theplate and is provided with a plurality of relatively short arcuateslots 13 through -which project retainer bolts 14 carried by the baseplate 10. A plurality of wheels 14 having the usual flanges are mountedon the base B, said wheels being mounted on railway rails15 fortransporting the device when in use.

The supporting standard of my invention includes an I-beam S, saidI-beam being mounted perpendicularly on the bearing plate 12 and firmlyconnected thereto by means of right-angular bracket plates 16.

The wing portions of the I-beam S are provided along their marginaledges with wearing or guiding plates 17 said plates being ri ht-angularin cross-section and riveted or otherwise secured as at 18 to saidI-beam.

On the upper free end of the standard S I provide a transverselyextending bracket member or pulley frame 19 composed of angle-irons orthe like connected to the standard by means of right-angular bracketplates 20. The free ends of the bracket 19 carry pulley wheels 21 for apurpose which will hereinafter appear.

I provide a carrying frame for an automatic tool of any type, said framebeing designated Fin itsentirety and being composed of two units and f,The u it f i composed of vertical end angle-irons 23 and 24 arranged inparallel relation and connected by transversely extending straps 25 and26. The angle-irons 23 and the straps 25 form one end of the unit f andthe angleirons 24 and the straps 26- form the other end thereof. Saidends are connected by two pairs of side angle-irons 27 and 28. All ofthe structure is preferably riveted, but, of course, I do not limitmyself tothis arrangement; The unit f is adapted to embrace the standardS, a plurality .of sets of anti-friction rollers 29 and 30 being carriedby the angle-irons 2 3 and 24, said rollers being mounted on trunnionsextending from said angle-irons and arranged at relative right angles.The present form of my invention includes 16 of the rollers 29 and 30 onthe unit f, I having found that with this number of rollers the bestresults may be had. The front ends of the angle-irons 27 and 28 areconnected by vertically extending angleirons 31 between whichangle-irons extends a strap v32 carrying a bearing plate 33 for apurpose which will hereinafter appear.

The unit f is preferably composed of .top and bottom parallel arrangedsets of angleirons 34 and 35 arranged oppositely relatively to the setsof angle-irons 27 and 28 and being adapted to fit between saidangleirons 27 and 28. The rear ends of the angleirjons 34 and '35 areConnected by horizontally and vertically extending strap members 36, andthe forward .ends of the sets of angle-irons 34 and 35 are connected byvertically extending straps 37 and a transversely extending strap 38,thereby forming. a rigid rectangular structure adapted for slidingmovement relative the unit The angle-irons 35 are extended to providearms 39, the free ends .of which are bifurcated .to form recesses 40 fora purpose which will hereinafter appear. A pair of diagonal braces 41extend from the upper front cor ner of the unit 7 to the arms 39, saidbraces being connected as at 42 to said arms. A transverse strap 43carrying a plate 44 is mounted on the diagonal braces 41, said plate 44having a threaded aperture,,tln-ough which a screw 45 passes, the inner.end of the screw being arranged for connection with but free rotationin the bearing plate 33. A manipulating crank 46 is mounted on theouterfree end of the screw 45. It will be seen that when the unit f ismounted on the unit 7 the units may be relatively moved by rotating thescrew 45. In this manner sliding adjustment of the unit 7" may beafforded.

An I-beam 47 is carried by the free ends of the arms 39, the baseportion.48 of said I-beam being receivable in the recesses 40 as best shown inFig.3. The I-beam 47 is arranged relatively at right-angles to thecarrying, framev F and is provided \witha' plurality of guiding orbearing track members 49 similar to the track members 17 hereinbeforereferred to. Diagonal braces 50 extend from the free end portions of theI- beam 47 to the bottom angle-iron 35 of the unit f, said bracestending toward a rigid ity of structure and thus preventing distortionof the I-beam under strain.

Referring specifically to Fig. 3 I provide a tool carriage designated Cand being formed from a channel-iron 51, a plate 52 and a second channeliron 53. iron 53 is relatively smaller or narrower than the channel iron51, this being necessarily so since the .channel iron 53 must clear thearms 39. The plate 52 is connected with the channel iron-s 51 and 53 bymeans of rivets 54 or the like. The tool carriage C is adapted forlongitudinal movement along the I-beam 47, weight receivinganti-friction rollers 55 being provided arranged on shafts 56 carriedthe .channel irons 51 and 53 and guiding anti-friction rollers 57 and 58also being provided, said rollers 57 and 58 having flanges 59 and 60 onthe lower free ends thereof for engagement beneath the track members-49,whereby to prevent dislodgment of the carriage. The rollers 57 and 58are mounted on shafts 61 and 62 ex tending between the flanges of theangleirons 51 and 53 and the plate 52. a

The tool frame is designated 63 and carries a .tQol 64, which may be astone surfacing tool, a drill, a planing tool, or in fact any type .ofpneumatic boring,'drilling or surfacing machine tool. In the presentinstance a pneumatic tool has been shown the power tube being designated65.

In order to balance the frame F in its vertical movement on' thestandard S I provide a cable 66 trained .over the pulleys 21, one freeend of said cable being connected by a link 67 to the unit 7 and theother free end of said cable having a weight 68 thereon.

In use it will be noted that by vertically moving the frame F, anydesired height, within certain limits, may be attained. By adjusting theunit relative the unit 7 a transverse adjustment of the machine may behad. By moving the tool carriage on the I-beam 47 any ,point, withincertain limits may be reached by the tool 64. It will thus beseenthat awider-range of adjustmentof the parts of .my invention may be hadwithout unnecessary labor on the part ,of the operator. It is, ofcourse, to be understood that while I have described andshown myinvention as employed as a stone surfacing The channelmachine certainchcnges may be made, such as ,substituting a drill {for the surfacing.tool or by increasing the size of the whole .machine .and .using thesame as acrane, withoutdeparting from the spirit and scope of theinvention. Therefore, it will be seen that l have provided .a machinewhich, by

slight modification may be adapted for use in various capacities. Thestructure is simple, most of the parts being constructed from stockmaterial Which may be obtained Without difficulty at iron foundries andthe like.

From the above description taken in con? nection With the accompanyingdrawings,

it is thought that a clear and comprehensive tion, whatl claim as newand desire to secure by Letters Patent, is

1. A stone cutting and surfacing machine comprising a base, a verticalstandard supported upon the base for angular adjustment rotatab-ly, aframe engaged With the standard for vertical movement, means forcounterbalancing the frame, a frame engaged with the first named frameand slid able horizontally, means connecting said frames for moving thesecond frame relative to the first frame, said second named frame beingmounted exteriorly of the first named frame and provided With armextensions, a horizontal guide Way carried by said arm extensions atright angles to said slidable frame and standard and a horizontaloverhanging tool carriage support movably mounted on said guide Way forlateral adjustment thereon.

2. A stone cutting and surfacing machine comprising a base, a verticalstandard supported upon the base for angular adjustment rotatably, aframe engaged with the standard for vertical movement, means forcounterbalancing. the frame, a frame engaged with the first named frameand slidable horizontally, means connecting said frames for moving thesecond frame relative to the first frame. said second named frame beingmounted exteriorly of the first named frame and provided With armextensions, a horizontal guide member fitted in said extensions andcomprlsmg an I-beam arranged horizontally at right angles to saidmovable frame and standard, said shifting means for the second frameserving to hold the same in fixed relation to the standard and firstnamed frame and to vary the degree of pro jection thereof, and a toolcarriage having a series of anti-friction rollers engaging the flangesof the rail not secured to the arm extensions, certain of said rollershaving flanges serving to retain said carriage from displacement.

3. A stone cutting and surfacing machine comprising a base, a verticalstandard supported-upon the base, securing means for the standard, aframe engaged With the standard for vertical movement, means forcounterbalancing the frame,5a frame engaged With the first named frameand slidable horizontally, means connecting said frames-for moving thesecond frame relative to the first frame, said second named frame beingmounted exteriorly of the first named frame and provided with slottedextensions, a horizontal guide rail having a flange fitted in said slotsand comprising an I-beam ar ranged at right angles to said movableframe, said shifting means for the second frame serving to hold the samein fixed relation to the'standard and first named frame, a tool carriagehaving a series of anti-friction rollers engaging the remaining flangesof the rail not secured to the said extensions,

said rollers having flanges serving. to retain said carriage fromdisplacement, said carriage comprisingspaced vertical plates and a topplate co1'1necting the'same, one of said vertical plates overlying saidextensions and movable across the same, and a horizontal support for ahorizontally positioned tool, projecting from the carriage.

4:. A stone cutting and surfacing machine particularly adapted' forsurfacing the perpendicular sides ofl'a stone, comprising a rectangularbase frame, sup-porting Wheels therefor, tracks along Which said Wheelsoperate, a plate secured centrally to' said base, a circular platehaving concentric slots therein, means engaging the base plateand slotsto hold the circular plate in adjusted position on the base plate andadapted to permit rotatable adjustment of the circular plate, a standardfixed to said circular-plate, said standard comprising an I-beam, aframe movable vertically along the I-beam and fitting the same snugly,roller bearings carried by said frame to engage the flanges of theI-beam, projecting side portions upon said frame, a second frameslidablc between said side portions horizontally, means positivelyconnecting said frames and adapted to be rotated for shifting the secondframe with respect to the first frame, a guide member carried by thesecond frame and a tool carrying member a-rranged upon the guide member.

5, A stone cutting and surfacingmachine particularly adapted forsurfacing the perpendicular sides of a stone, comprising a rectangularbase frame, supporting Wheels therefor, tracks along Which said Wheelsop erate, a plate secured centrally to said base, a circular plate,means to hold the latter in adjusted position turnably on the baseplate, a standard fixed to said circular plate, said standard comprisingan I-beam, a frame movable vertically along the I-beam and fitting thesame snugly, roller bearings carried by said frame to engage the flangesof the I-beam, projecting side portions upon said frame, a second frameslidable between said side portions horizontally, a feed screw swiveledto the frame engaging the I-beam, athreaded sleeve carried by themovable frame also engaged by said screw whereby the latter frame willbe shifted upon rotation of the screw for adjustment toward and awayfrom the work, and a tool carriage movable at right angles to themovement of said frame and supported in overhanging relation upon thelatter, said carriage having a horizontal support for a pneumatic toolhammer or the like. I

6. A stone cutting and surfacing machine particularly adapted forsurfacing the perpendicularsides of a stone, comprising a rectan'gularbase frame, supporting wheels therefor, tracks along'which said wheelsoperate, a plate secured centrally to saidbas'e, a circular plate, meansto hold the latter in adjusted position of turning movement thereon, astandard fixed to said circular plate, said standard comprising anI-beam, a frame movable vertically along the I-beam and fitting the samesnugly, roller bearings carried by said frame to engage the flanges ofthe I-beam, projecting side portions upon said frame,a second frameslidabl'e between said side portions horizontally, a feed screw swiveledto the frame engaging the I beam, a threaded sleeve carried by themovable frame also engaged by said screw whereby the latter frame willbe shifted upon rota-' tion of the screw for adjustment toward and awayfrom the work, a tool carriage movable at right angles to the movementof said frame and supported in overhanging relation'upon the latter,said carriage having a horizontal support for a pneumatic tool hammer orthe like, a cross arm upon the upper end of the standard, pulleyscarried thereby, a cable fixed to said movable frame and trained oversaid pulleys, and a counterweight carried by'the free end of the cablewhereby to balance said first named frame in adjusted positionvertically of the standard.

7. Ina machine of the class described, a wheeled base, a verticalstandard comprising an I-beam having a bottom plate with arouate slotstherethrough concentric to the axis of the plate, means for adjustablyconnecting the plate to the base and clamping the same in fixedposition, said eye-beam having angular corner portions,a rectangularopen frame, bearing rollers journaled in the same Copies of this patentmay be obtained for at right angles to engage said angular cornerportions for vertical movement of the frame on the standard, said framehaving vertical braces at one end and a cross brace connecting the same,and vertically spaced pairs of horizontal runners on each side thereof,a second rectangular open frame having side portions fitted between andhorizontally movable on said runners, manually operable 'meansconnecting the second frame to the cross'brace for shifting the secondframe with respect to the first frame, and a horizontal guide carried bythe second frame adapted to support a horizontally movable tool thereon.

8. In a machine of the class described, a wheeled base, a verticalstandard comprising an I-beam having a bottom plate with arcuate slotstherethrough concentric to the axis of the plate, means for adjustablyconnecting the plate to the base and clamping the same in fixedposition, said I-beam'having'angular corner portions, a rectangular openframe, bearing rollersjournaledin the same at right angles to engagesaid angular corner portions for vertical movement of the frame on thestandard, said framehaving vertical braces at one end and a cross braceconnecting the same, and vertically spaced pairs of horizontal runnerson each side thereof, a second rectangular open frame having sideportions fitted between and horizontally movable on said runners, saidsecond frame having extensions in the direction of movement'thereof,braces between said extensions and the frame, a cross bracecon nectingsaid last named braces, connecting means between said cross braces ofthe respective frames for shifting the second frame with respect to thefirst frame, an I- beam clamped to the free extremities of said armsatright angles thereto, angular corner pieces for the flanges of saidI-beam not secured to the arms, an inverted L-shaped carriage engagingsaid angular corner pieces last named, anti-friction rollers carried bysaid carriage and engaging said corner pieces, certain of said rollershaving retaining flanges to prevent displacement of the carriage, a toolsupport projecting from the carriage and balancing means for the weightof said guide-beam and carriage.

In testimony whereof, I affix my signature hereto.

five cents each, by addressing the Commissioner of Patents,- Washington,D. G.

